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Fortinet security patch release for CVE-2025-64155

Security Patch Release
First reported
Last updated
Happening score
H score 41
2 unique sources, 2 articles

Summary

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Fortinet released security updates for FortiSIEM and FortiFone, closing critical vulnerabilities that could let unauthenticated attackers achieve code execution or expose device configuration on affected systems. The FortiSIEM flaw, CVE-2025-64155, impacts specific Super and Worker nodes and was rated 9.4/10.0. A separate FortiFone issue, CVE-2025-47855, could leak configuration data through a crafted HTTP(S) request. Fortinet also advised customers to upgrade affected releases and, for CVE-2025-64155, restrict access to phMonitor port 7900.

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Fortinet security patch release for CVE-2026-25089

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H score44 First: 10.06.2026 18:10 Last: 10.06.2026 18:10 Sources 1

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Latest development: 11.06.2026 09:20

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Open Happening

Timeline

  1. 14.01.2026 02:00 3 articles · 6mo ago

    Fortinet releases fixes for FortiSIEM and FortiFone

    Mitigation Patch Update

    Fortinet released updates on January 14, 2026 to fix CVE-2025-64155 in FortiSIEM and CVE-2025-47855 in FortiFone, providing fixed releases for affected versions and recommending that customers restrict access to phMonitor port 7900 while upgrading.

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  2. 14.08.2025 03:00 1 articles · 11mo ago

    Horizon3.ai reports FortiSIEM CVE-2025-64155

    Initial Disclosure

    Horizon3.ai researcher Zach Hanley reported CVE-2025-64155 in FortiSIEM on August 14, 2025, describing an OS command injection flaw in phMonitor that could let an unauthenticated attacker execute unauthorized code or commands via crafted TCP requests and chain arbitrary file write with privilege escalation on affected Super and Worker nodes.

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